11 th symposium on neutron and ion dosimetry (neudos11) · 11 th symposium on neutron and ion...

Review of the

11th Symposium on Neutron and Ion Dosimetry (NEUDOS11)

Held at iThemba LabsCape Town, South Africa12th – 16th October 2009

Graeme Taylor

Neutron Users’ Club, 4th November 2009

NEUDOS11, NUC 4th November 2009

Outline

• The venue: iThemba Labs

• NEUDOS11 facts & figures

• Overview of scientific content

• Some specific highlights

• NEUDOS 12


iThemba Labs

• Main site: ~35 km outside Cape Town

• Main facility: cyclotron producing <200 MeV protons

• Main activities: medical radiation, radionuclide production, nuclear physics and materials science

• Staff levels: ~300 Workers, ~100 students

• Only facility in Southern Hemisphere offering fast neutron and proton therapy

• 6 MV Tandem VdG at Johannesburg


iThemba Labs


NEUDOS 11 facts & figures

• First NEUDOS meeting held outside Europe

• ~200 Delegates

Europe

Africa

Asia

Americas

Middle East


Overview of scientific content

• Topics covered

� Fundamental aspects of dosimetry

� Instrumentation

� Measurement techniques

� Radiation quality

� Radiation protection

� Radiotherapy

� Other applications


Overview of scientific content

Breakdown of presentations

� 41 oral presentations

� 17 invited

� 24 ‘open’

� ~150 posters

� 4 sessions


TransportCodes


TransportCodes

Topics covered

• MV vs deterministic

• ORNL codes

� SCALE

� MCNP

• Other codes


TransportCodes


Novel techniques for radiation protection & dosimetry


Presentations available onlineAgosteo S: Overview of novel techniques for radiation protection and dosimetry

Bartlett D: Occupational exposure to the cosmic radiation in aircraft: measurement of, and doses from, the neutron component

Bassler N: How to do (or not to do) antiproton dosimetry

Endo A: Dose assesment in the criticality accident at Tokai-mura

Gomez F: Active on-line detector for in-room radiotherapy neutron measurements

Kirk B: Overview of Monte Carlo neutron transport codes

Lacoste V: Review of radiation sources, calibration facilities and simulated workplace fields

Lamirand V: Comparison of nuclear reactions for the production of monoenergetic neutron fields with energies below 100 keV

Pomp S: Review of neutron physics in dosimetry

Romanets Y: EURISOL-DS Multi-MW target unit: neutronics and shielding performance, dose rate and material activation calculations for the MAFF configuration

Rozenfeld A: Microdosimetry with silicon pixel detectors

Thomas D: An overview of neutron spectrometry

Vanhavere F: Testing three types of personal neutron dosimeters

Wambersie A: What can we learn from the neutron clinical experience for improving high-LET ion-beam techniques and patient selection?

Yepes P: A fast and precise dose calculation algorithm



Increasing number of applications in medicine & research

• high intensity radiation fields (neutron sources)• ultra-high intensity lasers• increasing use of high energy hadron therapy

Two approaches to dosimetry

• passive systems• miniaturised systems


The Basics...


The Basics...

• quantities (dose & kerma, etc)• xsecs (10-8 eV > GeV)

• detection methods (TNC, (n,p) )• production (10-8 eV - > GeV)


Field testing personal dosimeters



SCK-CEN have used bubble detectors for neutron personal dosimetry for 10 years:


Low energy neutron standards


A word fromOurSponsors


NEUDOS 12

Aix en ProvenceJune 2013

11 th symposium on neutron and ion dosimetry (neudos11) · 11 th symposium on neutron and ion...

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